Resonator filter having a rotatable rod that presses a dielectric material into an elastic spring material

Abstract

A resonator filter according to a first exemplary embodiment of the present invention includes: a cover formed with a first coupling hole; a housing connected to the cover to form an inner space and having a second coupling hole formed at a bottom of the inner space; a dielectric material mounted around the second coupling hole in the bottom of the inner space of the housing; a first rod inserted to the first coupling hole to be connected to the cover and pressing the dielectric material; and a second rod inserted to the second coupling hole to be connected to the housing to be close to the dielectric material and tuning a resonance frequency by controlling a separation distance from the first rod.

What is claimed is: 
     
       1. A resonator filter comprising:
 a cover formed with a first coupling hole; 
 a housing connected to the cover to form an inner space and having a second coupling hole formed at a bottom of the inner space; 
 a dielectric material mounted within the inner space of the housing; 
 an elastic spring material mounted between the dielectric material and the housing; 
 a first rod inserted into the first coupling hole to be connected to the cover and pressing the dielectric material; and 
 a second rod inserted into the second coupling hole to be connected to the housing to be close to the dielectric material and tuning a resonance frequency by controlling a separation distance from the first rod, 
 wherein both the first rod and the second rod are rotatable such that both the rotating of the first rod that presses the dielectric material into the elastic spring material and the rotating of the second rod that controls the separation distance between an end of the first rod and an end of the second rod provides the resonance frequency tuning. 
 
     
     
       2. The resonator filter of  claim 1 , wherein the first coupling hole and the first rod are screw-coupled. 
     
     
       3. The resonator filter of  claim 1 , wherein the first rod has a coupling groove to be coupled to a rotary tool. 
     
     
       4. The resonator filter of  claim 1 , wherein the dielectric material is formed with a hollow portion to be penetrated by the second rod. 
     
     
       5. The resonator filter of  claim 1 , wherein the first rod includes an adhesive member that is fixed to the first coupling hole. 
     
     
       6. The resonator filter of  claim 1 , wherein the second coupling hole and the second rod are connected by screw-coupling. 
     
     
       7. The resonator filter of  claim 1 , wherein the second rod includes a fixing nut close to the housing outside and fixing an insertion length of the second rod. 
     
     
       8. The resonator filter of  claim 1 , wherein the housing includes a mounting groove mounted with the dielectric material at the bottom thereof. 
     
     
       9. A resonator filter comprising:
 a cover formed with a first coupling hole; 
 a housing connected to the cover to form an inner space and having a second coupling hole formed at a bottom of the inner space; 
 a dielectric material mounted within the inner space of the housing; 
 a first rod inserted into the first coupling hole to be connected to the cover and pressing the dielectric material; and 
 a second rod inserted into the second coupling hole to be connected to the housing to be close to the dielectric material and tuning a resonance frequency by controlling a separation distance from the first rod, 
 wherein the first rod includes an adhesive member disposed at the cover. 
 
     
     
       10. A resonator filter comprising:
 a cover formed with a first coupling hole; 
 a housing connected under the cover and forming a space that is enclosed; 
 a dielectric material positioned within the space that is enclosed; 
 an elastic spring material mounted between the dielectric material and an inner lower wall of the housing; 
 a first rod inserted into the first coupling hole of the cover, pressing the dielectric material, and formed with a hollow portion; and 
 a second rod inserted into the hollow portion of the first rod, close to the dielectric material, and controlling a separation distance from the housing bottom to tune a resonance frequency, 
 wherein both the first rod and the second rod are rotatable such that both a rotating of the first rod that presses the dielectric material into the elastic spring material and a rotating of the second rod that controls a separation distance between an end of the first rod and an end of the second rod provides the resonance frequency tuning. 
 
     
     
       11. The resonator filter of  claim 10 , wherein the first coupling hole and the first rod are connected by screw-coupling. 
     
     
       12. The resonator filter of  claim 10 , wherein the dielectric material is also formed with a hollow portion to be penetrated by the second rod. 
     
     
       13. The resonator filter of  claim 10 , further comprising a fixing nut fixing an insertion length of the second rod between the first rod and the second rod. 
     
     
       14. The resonator filter of  claim 10 , wherein the housing includes a mounting groove mounted with the dielectric material at the bottom thereof.